Class image
{
Public $ info = array (); Function _ construct ()
{
! Extension_loaded ('gd ') & exit ("www.111cn.net prompt: The server environment does not support gd library ");
Return true;
} Function image ()
{
$ This->__ construct ();
}
Function thumb ($ image, $ thumb_width = 300, $ thumb_height = 225)
{
$ Info = $ this-> info ($ image );
$ Scale = min (1, min ($ thumb_width/$ info ['width'], $ thumb_height/$ info ['height']); // proportional scaling
$ Thumb_width = intval ($ info ['width'] * $ scale );
$ Thumb_height = intval ($ info ['height'] * $ scale );
$ Createfunc = 'imagecreatefrom '. ($ info ['type'] = 'jpg '? 'Jpeg ': $ info ['type']);
$ Im = $ createfunc ($ image );
$ Thumb_im = $ info ['type']! = 'GIF' & function_exists ('imagecreatetruecolor ')? Imagecreatetruecolor ($ thumb_width, $ thumb_height): imagecreate ($ thumb_width, $ thumb_height );
Imagecopyresampled ($ thumb_im, $ im, 0, 0, 0, $ thumb_width, $ thumb_height, $ info ['width'], $ info ['height']);
If ($ info ['type'] = 'GIF' | $ info ['type'] = 'PNG ')
{
$ Bgcolor = imagecolorallocate ($ thumb_im, 0,255, 0 );
Imagecolortransparent ($ thumb_im, $ bgcolor );
}
$ Imagefunc = 'image'. ($ info ['type'] = 'jpg '? 'Jpeg ': $ info ['type']);
$ Thumbname = 'thumb _ '. $ info ['name'].'. '. $ info ['type'];
$ Imagefunc ($ thumb_im, $ info ['path']. $ thumbname );
Imagedestroy ($ im );
Imagedestroy ($ thumb_im );
Return $ info ['path']. $ thumbname;
} Function watermark ($ image, $ pos = 9, $ watermarkimg = 'Images/watermark.gif ', $ pct = 65, $ text = '', $ w_font = 5, $ w_color = '# ff0000 ')
{
$ Imageinfo = $ this-> info ($ image );
$ Source_w = $ imageinfo ['width'];
$ Source_h = $ imageinfo ['height'];
$ Imagecreatefunc = 'imagecreatefrom '. ($ imageinfo ['type'] = 'jpg '? 'Jpeg ': $ imageinfo ['type']);
$ Im = $ imagecreatefunc ($ image );
If (! Empty ($ watermarkimg) & file_exists ($ watermarkimg) // add an image watermark
{
$ Iswaterimage = true;
$ Watermarkinfo = $ this-> info ($ watermarkimg );
$ Width = $ watermarkinfo ['width'];
$ Height = $ watermarkinfo ['height'];
$ Watermarkcreatefunc = 'imagecreatefrom '. ($ watermarkinfo ['type'] = 'jpg '? 'Jpeg ': $ watermarkinfo ['type']);
$ Watermark_im = $ watermarkcreatefunc ($ watermarkimg );
}
Else // add a text watermark
{
$ Iswaterimage = false;
If (! Empty ($ w_color) & strlen ($ w_color) = 7)
{
$ R = hexdec (substr ($ w_color, 1, 2 ));
$ G = hexdec (substr ($ w_color, 3, 2 ));
$ B = hexdec (substr ($ w_color, 5, 2 ));
}
$ Temp = imagettfbbox (ceil ($ w_font * 2.5), 0, 'fonts/alger. Ttf', $ text );
$ Width = $ temp [2]-$ temp [6];
$ Height = $ temp [3]-$ temp [7];
Unset ($ temp );
}
Switch ($ pos)
{
Case 0:
$ Wx = mt_rand (0, ($ source_w-$ width ));
$ Wy = mt_rand (0, ($ source_h-$ height ));
Break;
Case 1:
$ Wx = 5;
$ Wy = 5;
Break;
Case 2:
$ Wx = ($ source_w-$ width)/2;
$ Wy = 5;
Break;
Case 3:
$ Wx = $ source_w-$ width-5;
$ Wy = 5;
Break;
Case 4:
$ Wx = 5;
$ Wy = ($ source_h-$ height)/2;
Break;
Case 5:
$ Wx = ($ source_w-$ width)/2;
$ Wy = ($ source_h-$ height)/2;
Break;
Case 6:
$ Wx = $ source_w-$ width-5;
$ Wy = ($ source_h-$ height)/2;
Break;
Case 7:
$ Wx = 5;
$ Wy = $ source_h-$ height-5;
Break;
Case 8:
$ Wx = ($ source_w-$ width)/2;
$ Wy = $ source_h-$ height-5;
Break;
Default:
$ Wx = $ source_w-$ width-5;
$ Wy = $ source_h-$ height-5;
Break;
}
If ($ iswaterimage)
{
If ($ imageinfo ['type'] = 'PNG '){
Imagecopy ($ im, $ watermark_im, $ wx, $ wy, 0, 0, $ width, $ height );
} Else {
Imagecopymerge ($ im, $ watermark_im, $ wx, $ wy, 0, 0, $ width, $ height, $ pct );
}
}
Else
{
Imagestring ($ im, $ w_font, $ wx, $ wy, $ text, imagecolorallocate ($ im, $ r, $ g, $ B ));
}
$ Imagefunc = 'image'. ($ imageinfo ['type'] = 'jpg '? 'Jpeg ': $ imageinfo ['type']);
$ Imagefunc ($ im, $ image );
Imagedestroy ($ im );
Return true;
} Function info ($ image)
{
$ Info = array ();
$ Info ['size'] = filesize ($ image );
$ Imageinfo = getimagesize ($ image );
$ Info ['width'] = $ imageinfo [0];
$ Info ['height'] = $ imageinfo [1];
$ Info ['width _ height'] = $ imageinfo [3];
$ Info ['Mime '] = $ imageinfo ['Mime'];
Unset ($ imageinfo );
$ Imageinfo = pathinfo ($ image );
$ Info ['path'] = $ imageinfo ['dirname']. '/';
$ Info ['type'] = strtolower ($ imageinfo ['extension']); // image type, excluding '.'
$ Info ['name'] = $ imageinfo ['filename'];
Unset ($ imageinfo, $ name );
$ This-> info = $ info;
Return $ info;
}
} |
